Infusion device having offset flow path

Abstract

An infusion device, including: a housing; an infusion cannula extending downwardly away from the housing and capable of receiving an insertion needle; a septum disposed in the housing; a passageway under said septum and in fluid communication with said cannula; and, an infusion needle insertable through the septum, the infusion needle capable of penetrating the septum and entering said passageway thereby forming a flow path between the infusion needle and the infusion cannula and wherein the infusion cannula and the infusion needle are aligned on separate non identical axes.

1. An infusion device, comprising:
 a housing; an infusion cannula extending downwardly away from the housing and capable of receiving an insertion needle;  
 a septum disposed in the housing;  
 a passageway under said septum and in fluid communication with said cannula and;  
 an infusion needle insertable through the septum, the infusion needle capable of penetrating the septum and entering said passageway thereby forming a flow path between the infusion needle and the infusion cannula and wherein the infusion cannula and the infusion needle are aligned on separate non identical axes, wherein the infusion cannula and the infusion needle are positioned parallel to one another.  
 
   
   
     2. The device of  claim 1 , wherein the infusion cannula and the infusion needle are in different planes relative to each other. 
   
   
     3. The device of  claim 1 , wherein the infusion cannula and the infusion needle have different diameters. 
   
   
     4. The device of  claim 1 , wherein the connecting hub is rotatable with respect to the housing. 
   
   
     5. The device of  claim 4 , wherein the connecting hub is rotatable 360 degrees with respect to the housing. 
   
   
     6. The device of  claim 4 , wherein the connecting hub is rotatable less than 360 degrees with respect to the housing. 
   
   
     7. The device of  claim 1 , wherein the connecting hub is attachable to the housing at different rotational positions. 
   
   
     8. The device of  claim 1 , wherein the connecting hub further comprises: at least one flexible handle configured to attach the connecting hub onto the housing. 
   
   
     9. The device of  claim 1 , wherein the housing further comprises: an adhesive bandage extending therefrom for holding the housing against the patient's skin. 
   
   
     10. The device of  claim 1 , wherein the connecting hub further comprises: a fluid infusion tube extending from the connecting hub, the fluid infusion tube being in fluid communication with the infusion needle. 
   
   
     11. The device of  claim 1 , wherein the septum is pre-slit and wherein the infusion needle is a plastic tube. 
   
   
     12. An infusion device, comprising: a housing; an infusion cannula extending downwardly away from the housing and capable of receiving an insertion needle; a septum disposed in the housing; a passageway under said septum and in fluid communication with said cannula and; an infusion needle insertable through the septum, the infusion needle capable of penetrating the septum and entering said passageway thereby forming a flow path between the infusion needle and the infusion cannula and wherein the infusion cannula and the infusion needle are aligned on separate non identical axes and wherein the infusion needle is disposed in the center of the connecting hub and the infusion cannula is disposed off-center to the housing. 
   
   
     13. An infusion device, comprising:
 a housing; an infusion cannula extending downwardly away from the housing and capable of receiving an insertion needle; a septum disposed in the housing; a passageway under said septum and in fluid communication with said cannula and; an infusion needle insertable through the septum, the infusion needle capable of penetrating the septum and entering said passageway thereby forming a flow path between the infusion needle and the infusion cannula and wherein the infusion cannula and the infusion needle are aligned on separate non identical generally parallel axes.  
 
   
   
     14. An infusion device, comprising:
 a housing; an infusion cannula extending downwardly away from the housing and capable of receiving an insertion needle; a septum disposed in the housing; a passageway under said septum and in fluid communication with said cannula and; an infusion needle insertable through the septum, the infusion needle capable of penetrating the septum and entering said passageway thereby forming a flow path between the infusion needle and the infusion cannula and wherein the infusion cannula and the infusion needle are aligned in separate generally parallel planes but wherein said cannula and needle are not on identical axes.  
 
   
   
     15. An infusion device, comprising:
 a housing; a connecting hub rotatable on said housing; stops configured to limit the rotation of the hub; an infusion cannula extending downwardly away from the housing and capable of receiving an insertion needle; a septum disposed in the housing; a passageway under said septum and in fluid communication with said cannula and; an infusion needle insertable through the rotatable hub and the septum, the infusion needle capable of penetrating the septum and entering said passageway thereby forming a flow path between the infusion needle and the infusion cannula and wherein the infusion cannula and the infusion needle are aligned on separate non identical generally parallel axes and where the connecting hub is rotatable between said stops.